149654440 has 64 divisors (see below), whose sum is σ = 367315200. Its totient is φ = 54542592.

The previous prime is 149654437. The next prime is 149654447. The reversal of 149654440 is 44456941.

149654440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 149654440.

It is not an unprimeable number, because it can be changed into a prime (149654447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39259 + ... + 42901.

It is an arithmetic number, because the mean of its divisors is an integer number (5739300).

Almost surely, 2^149654440 is an apocalyptic number.

149654440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 149654440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (183657600).

149654440 is an abundant number, since it is smaller than the sum of its proper divisors (217660760).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

149654440 is a wasteful number, since it uses less digits than its factorization.

149654440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3746 (or 3742 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 37.

The square root of 149654440 is about 12233.3331516803. Note that the first 3 decimals coincide. The cubic root of 149654440 is about 530.9209572102.

The spelling of 149654440 in words is "one hundred forty-nine million, six hundred fifty-four thousand, four hundred forty".